Home / 31,153.21-42,991.56-17,006.36

Finding the Fourth Proportional to 31,153.21, 42,991.56 and 17,006.36

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Solution

The fourth proportional to 31,153.21, 42,991.56 and 17,006.36 is: 23,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,153.21 : 42,991.56 = 17,006.36 : x
  2. Step 2: Convert to fraction form
    31,153.21/42,991.56 = 17,006.36/x
  3. Step 3: Cross multiply
    31,153.21x = 42,991.56 × 17,006.36
  4. Step 4: Simplify right side
    31,153.21x = 731,129,731.36
  5. Step 5: Solve for x
    x = 731,129,731.36/31,153.21
  6. Step 6: Final answer
    x = 23,468.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.